Two Pima County sheriff's deputies shot and killed an armed man in a casino parking lot Saturday after he allegedly rammed a police car, officials said.

The shooting happened in the parking lot of Casino Del Sol, near Valencia and Camino Verde roads, at about 10 p.m., police said.

Deputy James Allerton, a spokesman for the Pima County Sheriff's Department, said deputies had pursued 39-year-old Vincent James Ewer II into the parking lot. Ewer struck a Pascua Yaqui police car before running into the desert, Allerton said.

Deputies followed Ewer, who Allerton said was armed. Deputy Paul Petropoulis and Sgt. Aaron Cross then fired at the suspect, striking him at least once. Ewer was pronounced dead at the scene.

The Pascua Yaqui police officer sustained minor injuries in the crash but didn't need hospitalization, police said. A PCSD canine was treated for a minor injury before being released to its handler.